From 063291c51ece75fe8d7b4be1f01f1e39f95dcabd Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Fri, 1 May 2015 12:29:27 -0700 Subject: [PATCH] usb: musb: Fix up DMA related macros Pass struct musb to tusb_dma_omap() and is_cppi_enabled(), and add macros for the other DMA controllers. Populate the platform specific quirks with the DMA type and use it during runtime. Note that platform glue layers with no custom DMA code are tagged with MUSB_DMA_INVENTRA which may have a chance of working. Looks like the defconfigs for these use PIO_ONLY, so this should not break existing configs. Signed-off-by: Tony Lindgren Signed-off-by: Felipe Balbi --- drivers/usb/musb/am35x.c | 2 +- drivers/usb/musb/blackfin.c | 1 + drivers/usb/musb/da8xx.c | 2 +- drivers/usb/musb/davinci.c | 3 ++- drivers/usb/musb/jz4740.c | 2 +- drivers/usb/musb/musb_core.c | 2 +- drivers/usb/musb/musb_dma.h | 35 +++++++++++++++++++++++++++++----- drivers/usb/musb/musb_dsps.c | 2 +- drivers/usb/musb/musb_gadget.c | 8 ++++---- drivers/usb/musb/musb_host.c | 10 +++++----- drivers/usb/musb/omap2430.c | 1 + drivers/usb/musb/tusb6010.c | 4 ++-- drivers/usb/musb/tusb6010.h | 6 ------ drivers/usb/musb/ux500.c | 2 +- 14 files changed, 51 insertions(+), 29 deletions(-) diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c index 220fd4d3b41cf..72ce2e862b612 100644 --- a/drivers/usb/musb/am35x.c +++ b/drivers/usb/musb/am35x.c @@ -438,7 +438,7 @@ static void am35x_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst) } static const struct musb_platform_ops am35x_ops = { - .quirks = MUSB_INDEXED_EP, + .quirks = MUSB_DMA_INVENTRA | MUSB_INDEXED_EP, .init = am35x_musb_init, .exit = am35x_musb_exit, diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c index 6123b748d2628..2a73a730bfa50 100644 --- a/drivers/usb/musb/blackfin.c +++ b/drivers/usb/musb/blackfin.c @@ -465,6 +465,7 @@ static int bfin_musb_exit(struct musb *musb) } static const struct musb_platform_ops bfin_ops = { + .quirks = MUSB_DMA_INVENTRA, .init = bfin_musb_init, .exit = bfin_musb_exit, diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c index 9a9c82a4d35d8..06c442c2fb204 100644 --- a/drivers/usb/musb/da8xx.c +++ b/drivers/usb/musb/da8xx.c @@ -458,7 +458,7 @@ static int da8xx_musb_exit(struct musb *musb) } static const struct musb_platform_ops da8xx_ops = { - .quirks = MUSB_INDEXED_EP, + .quirks = MUSB_DMA_CPPI | MUSB_INDEXED_EP, .init = da8xx_musb_init, .exit = da8xx_musb_exit, diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c index 3c1d9b211b51c..26bfdb33bcc71 100644 --- a/drivers/usb/musb/davinci.c +++ b/drivers/usb/musb/davinci.c @@ -284,7 +284,7 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci) * mask, state, "vector", and EOI registers. */ cppi = container_of(musb->dma_controller, struct cppi, controller); - if (is_cppi_enabled() && musb->dma_controller && !cppi->irq) + if (is_cppi_enabled(musb) && musb->dma_controller && !cppi->irq) retval = cppi_interrupt(irq, __hci); /* ack and handle non-CPPI interrupts */ @@ -491,6 +491,7 @@ static int davinci_musb_exit(struct musb *musb) } static const struct musb_platform_ops davinci_ops = { + .quirks = MUSB_DMA_CPPI, .init = davinci_musb_init, .exit = davinci_musb_exit, diff --git a/drivers/usb/musb/jz4740.c b/drivers/usb/musb/jz4740.c index bb7b26325a74e..b7b5fdc0000e4 100644 --- a/drivers/usb/musb/jz4740.c +++ b/drivers/usb/musb/jz4740.c @@ -106,7 +106,7 @@ static int jz4740_musb_exit(struct musb *musb) } static const struct musb_platform_ops jz4740_musb_ops = { - .quirks = MUSB_INDEXED_EP, + .quirks = MUSB_DMA_INVENTRA | MUSB_INDEXED_EP, .fifo_mode = 2, .init = jz4740_musb_init, .exit = jz4740_musb_exit, diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 3789b08ef67b0..4ac060ab8a89c 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -1659,7 +1659,7 @@ void musb_dma_completion(struct musb *musb, u8 epnum, u8 transmit) if (!epnum) { #ifndef CONFIG_USB_TUSB_OMAP_DMA - if (!is_cppi_enabled()) { + if (!is_cppi_enabled(musb)) { /* endpoint 0 */ if (is_host_active(musb)) musb_h_ep0_irq(musb); diff --git a/drivers/usb/musb/musb_dma.h b/drivers/usb/musb/musb_dma.h index 1d44faa862525..555f2aed5a556 100644 --- a/drivers/usb/musb/musb_dma.h +++ b/drivers/usb/musb/musb_dma.h @@ -68,16 +68,41 @@ struct musb_hw_ep; #define is_dma_capable() (1) #endif -#if defined(CONFIG_USB_TI_CPPI_DMA) || defined(CONFIG_USB_TI_CPPI41_DMA) -#define is_cppi_enabled() 1 +#ifdef CONFIG_USB_UX500_DMA +#define musb_dma_ux500(musb) (musb->io.quirks & MUSB_DMA_UX500) +#else +#define musb_dma_ux500(musb) 0 +#endif + +#ifdef CONFIG_USB_TI_CPPI41_DMA +#define musb_dma_cppi41(musb) (musb->io.quirks & MUSB_DMA_CPPI41) +#else +#define musb_dma_cppi41(musb) 0 +#endif + +#ifdef CONFIG_USB_TI_CPPI_DMA +#define musb_dma_cppi(musb) (musb->io.quirks & MUSB_DMA_CPPI) #else -#define is_cppi_enabled() 0 +#define musb_dma_cppi(musb) 0 #endif #ifdef CONFIG_USB_TUSB_OMAP_DMA -#define tusb_dma_omap() 1 +#define tusb_dma_omap(musb) (musb->io.quirks & MUSB_DMA_TUSB_OMAP) +#else +#define tusb_dma_omap(musb) 0 +#endif + +#ifdef CONFIG_USB_INVENTRA_DMA +#define musb_dma_inventra(musb) (musb->io.quirks & MUSB_DMA_INVENTRA) +#else +#define musb_dma_inventra(musb) 0 +#endif + +#if defined(CONFIG_USB_TI_CPPI_DMA) || defined(CONFIG_USB_TI_CPPI41_DMA) +#define is_cppi_enabled(musb) \ + (musb_dma_cppi(musb) || musb_dma_cppi41(musb)) #else -#define tusb_dma_omap() 0 +#define is_cppi_enabled(musb) 0 #endif /* Anomaly 05000456 - USB Receive Interrupt Is Not Generated in DMA Mode 1 diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index 65d931a28a14c..63a8d5bbd3659 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -634,7 +634,7 @@ static void dsps_read_fifo32(struct musb_hw_ep *hw_ep, u16 len, u8 *dst) } static struct musb_platform_ops dsps_ops = { - .quirks = MUSB_INDEXED_EP, + .quirks = MUSB_DMA_CPPI41 | MUSB_INDEXED_EP, .init = dsps_musb_init, .exit = dsps_musb_exit, diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index 4c481cd66c77a..a94db12878307 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -366,7 +366,7 @@ static void txstate(struct musb *musb, struct musb_request *req) } #endif - if (is_cppi_enabled()) { + if (is_cppi_enabled(musb)) { /* program endpoint CSR first, then setup DMA */ csr &= ~(MUSB_TXCSR_P_UNDERRUN | MUSB_TXCSR_TXPKTRDY); csr |= MUSB_TXCSR_DMAENAB | MUSB_TXCSR_DMAMODE | @@ -402,7 +402,7 @@ static void txstate(struct musb *musb, struct musb_request *req) musb_writew(epio, MUSB_TXCSR, csr); /* invariant: prequest->buf is non-null */ } - } else if (tusb_dma_omap()) + } else if (tusb_dma_omap(musb)) use_dma = use_dma && c->channel_program( musb_ep->dma, musb_ep->packet_sz, request->zero, @@ -595,7 +595,7 @@ static void rxstate(struct musb *musb, struct musb_request *req) return; } - if (is_cppi_enabled() && is_buffer_mapped(req)) { + if (is_cppi_enabled(musb) && is_buffer_mapped(req)) { struct dma_controller *c = musb->dma_controller; struct dma_channel *channel = musb_ep->dma; @@ -772,7 +772,7 @@ static void rxstate(struct musb *musb, struct musb_request *req) fifo_count = min_t(unsigned, len, fifo_count); #ifdef CONFIG_USB_TUSB_OMAP_DMA - if (tusb_dma_omap() && is_buffer_mapped(req)) { + if (tusb_dma_omap(musb) && is_buffer_mapped(req)) { struct dma_controller *c = musb->dma_controller; struct dma_channel *channel = musb_ep->dma; u32 dma_addr = request->dma + request->actual; diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index e1fb5d885c18c..696396e857967 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -181,7 +181,7 @@ static inline void musb_h_tx_dma_start(struct musb_hw_ep *ep) /* NOTE: no locks here; caller should lock and select EP */ txcsr = musb_readw(ep->regs, MUSB_TXCSR); txcsr |= MUSB_TXCSR_DMAENAB | MUSB_TXCSR_H_WZC_BITS; - if (is_cppi_enabled()) + if (is_cppi_enabled(ep->musb)) txcsr |= MUSB_TXCSR_DMAMODE; musb_writew(ep->regs, MUSB_TXCSR, txcsr); } @@ -294,7 +294,7 @@ start: if (!hw_ep->tx_channel) musb_h_tx_start(hw_ep); - else if (is_cppi_enabled() || tusb_dma_omap()) + else if (is_cppi_enabled(musb) || tusb_dma_omap(musb)) musb_h_tx_dma_start(hw_ep); } } @@ -656,7 +656,7 @@ static bool musb_tx_dma_program(struct dma_controller *dma, channel->desired_mode = mode; musb_writew(epio, MUSB_TXCSR, csr); #else - if (!is_cppi_enabled() && !tusb_dma_omap()) + if (!is_cppi_enabled(hw_ep->musb) && !tusb_dma_omap(hw_ep->musb)) return false; channel->actual_len = 0; @@ -901,7 +901,7 @@ finish: /* kick things off */ - if ((is_cppi_enabled() || tusb_dma_omap()) && dma_channel) { + if ((is_cppi_enabled(musb) || tusb_dma_omap(musb)) && dma_channel) { /* Candidate for DMA */ dma_channel->actual_len = 0L; qh->segsize = len; @@ -1441,7 +1441,7 @@ done: } else if ((usb_pipeisoc(pipe) || transfer_pending) && dma) { if (musb_tx_dma_program(musb->dma_controller, hw_ep, qh, urb, offset, length)) { - if (is_cppi_enabled() || tusb_dma_omap()) + if (is_cppi_enabled(musb) || tusb_dma_omap(musb)) musb_h_tx_dma_start(hw_ep); return; } diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index cc752d8c77731..5546a22db2ed4 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -493,6 +493,7 @@ static int omap2430_musb_exit(struct musb *musb) } static const struct musb_platform_ops omap2430_ops = { + .quirks = MUSB_DMA_INVENTRA, .init = omap2430_musb_init, .exit = omap2430_musb_exit, diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c index 3a5ffd575438e..af923ded829ee 100644 --- a/drivers/usb/musb/tusb6010.c +++ b/drivers/usb/musb/tusb6010.c @@ -890,7 +890,7 @@ static irqreturn_t tusb_musb_interrupt(int irq, void *__hci) dev_dbg(musb->controller, "DMA IRQ %08x\n", dma_src); real_dma_src = ~real_dma_src & dma_src; - if (tusb_dma_omap() && real_dma_src) { + if (tusb_dma_omap(musb) && real_dma_src) { int tx_source = (real_dma_src & 0xffff); int i; @@ -1181,7 +1181,7 @@ static int tusb_musb_exit(struct musb *musb) } static const struct musb_platform_ops tusb_ops = { - .quirks = MUSB_IN_TUSB, + .quirks = MUSB_DMA_TUSB_OMAP | MUSB_IN_TUSB, .init = tusb_musb_init, .exit = tusb_musb_exit, diff --git a/drivers/usb/musb/tusb6010.h b/drivers/usb/musb/tusb6010.h index aec86c86ce326..72cdad23ced97 100644 --- a/drivers/usb/musb/tusb6010.h +++ b/drivers/usb/musb/tusb6010.h @@ -12,12 +12,6 @@ #ifndef __TUSB6010_H__ #define __TUSB6010_H__ -#ifdef CONFIG_USB_TUSB_OMAP_DMA -#define tusb_dma_omap() 1 -#else -#define tusb_dma_omap() 0 -#endif - /* VLYNQ control register. 32-bit at offset 0x000 */ #define TUSB_VLYNQ_CTRL 0x004 diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c index abf72728825fa..c6582f13ed487 100644 --- a/drivers/usb/musb/ux500.c +++ b/drivers/usb/musb/ux500.c @@ -188,7 +188,7 @@ static int ux500_musb_exit(struct musb *musb) } static const struct musb_platform_ops ux500_ops = { - .quirks = MUSB_INDEXED_EP, + .quirks = MUSB_DMA_UX500 | MUSB_INDEXED_EP, .init = ux500_musb_init, .exit = ux500_musb_exit, .fifo_mode = 5, -- 2.39.5